Use Of Liner Drilling Technology As A Mitigation To Lost Circulation InThe Faja De Oro (Golden Lane) Oil Fields Offshore Veracruz, Mexico

2013 ◽  
Author(s):  
L. F. Aguilera Naveja ◽  
G.R. Inciarte Fermin ◽  
R. Gaminos Ramos ◽  
Steven M. Rosenberg ◽  
Marco A. Dominguez M.
Keyword(s):  
Oil Fields ◽  
Lost Circulation ◽  
Drilling Technology

EXPERIENCE OF THE CASING DRILLING TECHNOLOGY APPLICATION IN PJSC "TATNEFT" OIL FIELDS

2018 ◽  
pp. 10-13
Author(s):  
R.F. Sagatov ◽  
◽  
A.Ya. Vakula ◽  
A.R. Ibragimov ◽  
L.B. Khuzina ◽  
...  
Keyword(s):  
Oil Fields ◽  
Technology Application ◽  
Drilling Technology ◽  
Casing Drilling

Lost Circulation Minimization Strategy Applied While Drilling Challenging Profile Well on Salym Group of Oil Fields

2015 ◽  
Author(s):  
Andrey Kharitonov ◽  
Svetlana Pogorelova ◽  
Ali Bakici ◽  
Alexander Antonov ◽  
Anton Khomutov
Keyword(s):  
Oil Fields ◽  
Lost Circulation

Modern Rheological Analysis of Drilling Fluids

2013 ◽  
Author(s):  
Anne Schulz ◽  
Heike Strauß ◽  
Matthias Reich
Keyword(s):  
Drilling Fluid ◽  
Hysteresis Loops ◽  
Hydraulic Calculation ◽  
Drilling Fluids ◽  
Drilling Process ◽  
Rheological Analysis ◽  
Lost Circulation ◽  
Solids Transport ◽  
Drilling Technology ◽  
The Cost

Rheological analysis provides a good comprehension of the deformation and flow of substances under different stress conditions. The complex composition of the drilling fluid and the versatile functions makes rheological studies here indispensable as well as in other scientific fields like the food industry and material science. In spite of adding many high-quality additives to the drilling fluids, problems still occur, such as barite-sag, lost circulation, change of mud properties (particularly at high and very low temperature), solids transport. Others are often mentioned as reasons for increasing the cost of wells. The areas in which rheology plays an important role in drilling technology will be highlighted in this article. The reason, why the characterization with the Fann-viscometer alone is not enough for a detailed view on rheology will be focused on. In addition, measuring methods which are able to provide detailed information about gel strength, consistency, gel destruction, gel build up process and yield point have been investigated. A short overview of the basics of rheology is given. In this article, novel procedures will be shown on the basis of flow curve, hysteresis loops, amplitude sweep and 3-interval-thixotropy-test (3ITT). With these procedures, deeper knowledge about the drilling fluid system can be obtained. Implementing these procedures and considering their results in hydraulic calculation programs or taking them into account by the design of drilling fluids, can reduce costs and lead to safer drilling process in general.

7-inch Casing While Drilling CWD With Retrievable Bottom Hole Assembly BHA

2021 ◽  
Author(s):  
Askhat Radikovich Usmanov ◽  
Anton Mikhailovich Shishkin ◽  
Alexander Sergeevich Merzlyakov ◽  
Jalal Lalash Ogli Karimov ◽  
Anton Valeryevich Fedotov ◽  
...  
Keyword(s):  
Vertical Surface ◽  
Directional Drilling ◽  
Wellbore Instability ◽  
Lost Circulation ◽  
Bottom Hole ◽  
Drilling Technology ◽  
Long Time ◽  
Well Trajectory ◽  
Bottom Hole Assembly ◽  
Casing Drilling

Abstract Casing drilling technology, as an alternative to conventional drilling, has been known for a long time. This method is mainly used for wells with geological complications, such as lost circulation or wellbore instability of various nature. By using drilling on a string for a section or part of it, the problem interval is immediately cased, eliminating the time spent on additional operations, such as pulling the bottom hole assembly (BHA), wiper trips and running the casing. Thus, this allows to reduce the time for well construction, reduces the risk of accidents and non-productive time associated with the complication zone. Casing drilling has become widely for drilling vertical surface conductors and technical casing with a drillable shoe, as well as for drilling with retrievable BHA in inclined sections for 324- and 245-mm casing. The aim of this work was to perform directional drilling on a 178mm production casing in an interval where the client had geological problems associated with running casing due to a zone of rock collapse. The uniqueness of the task lies in the fact that no one in the world has yet performed drilling on a casing with a building inclination and landing into a horizontal plane. It was necessary to follow the designed well trajectory, to build inclination from 67 to 85 degrees with the planned dogleg severity of 1 degree / 10m.

Successful Implementation of the PMCD Technology for Drilling and Completing the Well in Incompatible Conditions at Severo – Danilovskoe Oil & Gas Field

2021 ◽  
Author(s):  
Dmitry Krivolapov ◽  
Ivan Masalida ◽  
Artem Polyarush ◽  
Vyacheslav Visloguzov ◽  
Alexey Averkin ◽  
...  
Keyword(s):  
High Pressure ◽  
Oil And Gas ◽  
Back Pressure ◽  
Successful Implementation ◽  
Drilling Mud ◽  
Gas Field ◽  
Lost Circulation ◽  
Well Completion ◽  
Drilling Technology ◽  
Operating Window

Abstract This paper discusses the successful implementation of PMCD (Pressurized Mud Cap Drilling) technology at Severo – Danilovskoe oil and gas field (SDO) located in the Irkutsk region. The abnormally high-pressure reservoir B1 and the abnormally low-pressure reservoir B5 are the target layers in this field. Wells drilling at SDO is accompanied with simultaneous mud losses and inflows conditions, especially if the strata B1 is being penetrated. Pumping lost circulation materials (LCM) and cement plugs do not solve lost circulation complications which subsequently lead to oil and gas inflows. As a result, most of such wells are getting abandoned. It was assumed that complications in this formation occurs due to the narrow safe pressures’ operating window (ECD window), therefore, the managed pressure drilling technology (MPD) was initially used as a solution to this problem. However, after the penetration of the abnormally high formation pressure B1 horizon with a pore pressure gradient of 1.86 g/cm3 it was found that there is no operating window. In this regard, there were simultaneous mud losses and oil and gas inflows during the circulation. The well was gradually replaced by oil and gas, regardless of the applied surface back pressure value in the MPD system. The mixing of the mud and reservoir fluid was accompanied by catastrophic contamination. As a result, the drilling mud became non - flowing plugging both the mud cleaning system and the gas separator. On the other hand, the plugging of the B1 formation with LCM did not bring any positive results. Bullheading the well followed by drilling with applied surface back pressure and partial mud losses gave only a temporary result and required a large amount of resources. An implementation of PMCD technology instead of MPD has been proposed as an alternative solution to the problem. This technology made it possible to drill the well to the designed depth (2904 - 3010 m interval). For tripping operations, as well as the subsequent running of the production liner it was necessary to develop an integrated plan for well killing and completion in extreme instability conditions. As a result of various killing techniques application, it became possible to achieve the stability of the well for 1 hour. Oil and gas inflows inevitably occurred when the 1 hour lasted. Based on these conditions, the tripping and well completion process was adapted, which in the end made it possible to successfully complete the well, run the liner and activate the hanger in the abnormally high-pressure reservoir.

scholarly journals Using of surface back pressure with water based mud in managed pressure drilling technique to solve lost circulation problem in Southern Iraqi Oil Fields

2021 ◽  
Vol 11 (3) ◽  
pp. 28-47
Author(s):  
Batool Abdullah Dhayea ◽  
Faleh. H. M. Almahdawi ◽  
Sinan I. M. Al-Shaibani
Keyword(s):  
Water Injection ◽  
Pressure Profile ◽  
Injection Rate ◽  
Back Pressure ◽  
Oil Fields ◽  
Drilling Process ◽  
Lost Circulation ◽  
Managed Pressure Drilling ◽  
Wellbore Pressure ◽  
Circulation Problem

Many drilling problems are encountered continuously while drilling oil wells in the southern Iraqi oil fields. Many of these problems are ineffectively handled resulting in a longer non-productive time. This study aims to identify the formations such as Dammam, and Hartha formations،diagnose potential problems and provide the solution for lost circulation problem. After conducting a comprehensive study on the subject and based on available data, previous studies and some information, the managed pressure drilling (MPD) method was the best technique to solve this problem. This process may use various techniques including control of back pressures .Thus, reducing the risk and control the costs of drilled wells, which have narrow pressure window by managing the wellbore pressure profile.  The well plan software program provided by Halliburton Company was used, this software is based on a database and data structure common to many of Landmark’s drilling applications. Mud used with  various injection rates  to choose the rate that provides the conditions to achieve the best drilling process, as it using mud weights of (8.8 -8.7 ) ppg  and applied a surface back pressure (50 psi). Depending on specifications of second hole the optimal injection rate was chosen using the (hydraulics) program. As a results, rate of water injection (850) gpm, is the best  which it  provides a good efficient cutting transport ratio (CTR), which means high  stability and preventing formation damage in addition to controlling in  mud losses

Lost Circulation Minimization Strategy Applied While Drilling Challenging Profile Well on Salym Group of Oil Fields (Russian)

2015 ◽  
Author(s):  
Andrey Kharitonov ◽  
Svetlana Pogorelova ◽  
Ali Bakici ◽  
Alexander Antonov ◽  
Anton Khomutov
Keyword(s):  
Oil Fields ◽  
Lost Circulation
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