Successful Deployment of Horizontal Openhole Gravel Pack with Alternate Path Technique and Filter-Cake Breaker Placement for Effective Well Cleanup Offshore Myanmar

The Belida field is an offshore field located in Block B of Indonesia’s South Natuna Sea. This field was discovered in 1989. Both oil and gas bearing reservoirs are present in the Belida field in the Miocene Arang, Udang and Intra Barat Formations. Within the middle Arang Formation, there are three gas pay zones informally referred to as Beta, Gamma and Delta. These sand zones are thin pay zones which need to be carefully planned and economically exploited. Due to the nature of the reservoir, sand production is a challenge and requires downhole sand control. A key challenge for sand control equipment in this application is erosion resistance without inhibiting productivity as high gas rates and associated high flow velocity is expected from the zones, which is known to have caused sand control failure. To help achieve a cost-effective and easily planned deployment solution to produce hydrocarbons, a rigless deployment is the preferred method to deploy downhole sand control. PSD analysis from the reservoir zone suggested from ‘Industry Rules of Thumb’ a conventional gravel pack deployment as a means of downhole sand control. However, based on review of newer globally proven sand control technologies since adoption of these ‘Industry Rules of Thumb’, a cost-effective solution could be considered and implemented utilizing Ceramic Sand Screen technology. This paper will discuss the successful application at Block B, Natuna Sea using Ceramic Sand Screens as a rigless intervention solution addressing the erosion / hot spotting challenges in these high rate production zones. The erosion resistance of the Ceramic Sand Screen design allows a deployment methodology directly adjacent to the perforated interval to resist against premature loss of sand control. The robust ceramic screen design gave the flexibility required to develop a cost-effective lower completion deployment methodology both from a challenging make up in the well due to a restrictive lubricator length to the tractor conveyancing in the well to land out at the desired set depth covering the producing zone. The paper will overview the success of multi-service and product supply co-operation adopting technology enablers to challenge ‘Industry Rules of Thumb’ replaced by rigless reasoning as a standard well intervention downhole sand control solution where Medco E&P Natuna Ltd. (Medco E&P) faces sand control challenges in their high deviation, sidetracked well stock. The paper draws final attention to the hydrocarbon performance gain resulting due to the ability for choke free production to allow drawing down the well at higher rates than initially expected from this zone.

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Optimizing Gravel Pack Gas Well Production Through a Downhole Effluent Velocity-Based Approach in the Mahakam Field, Indonesia

10.29118/ipa.50.17.251.e ◽

2018 ◽

Author(s):

Rahmad Jatikusuma

Keyword(s):

Gas Well ◽

Well Production ◽

Gravel Pack

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Inhibitory Effect on Tyrosinase, ACE and Xanthine Oxidase, and Nitrite Scavenging Activities of Jubak (Alcohol filter cake) Extracts

Journal of the Korean Society of Food Science and Nutrition ◽

10.3746/jkfn.2012.41.9.1191 ◽

2012 ◽

Vol 41 (9) ◽

pp. 1191-1196 ◽

Cited By ~ 13

Author(s):

Sang-Chul Kwon ◽

Tae-Woog Jeon ◽

Jeong-Seob Park ◽

Joon-Soo Kwak ◽

Tae-Young Kim

Keyword(s):

Xanthine Oxidase ◽

Filter Cake ◽

Inhibitory Effect

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Degradation of Oil by Land Disposal

Water Science & Technology ◽

10.2166/wst.1987.0048 ◽

1987 ◽

Vol 19 (8) ◽

pp. 99-105 ◽

Cited By ~ 3

Author(s):

G. Tesan ◽

D. Barbosa

Keyword(s):

Nutrient Availability ◽

Filter Cake ◽

Test Procedure ◽

Pilot Scale ◽

Effluent Treatment ◽

Biological Degradation ◽

Chemical Fertilizers ◽

Land Disposal ◽

Micro Organisms

The work presented consists of a test procedure applied at a pilot scale using soil as a biological degradation agent. The experiments described were carried out with oily residues considered as wastes difficult to degrade by other means. The tests were applied to filter cake with activated clay containing 40% oil and oily residues from re-refining of lubricants to give white oils and vaseline. The effect of the amount of moisture is evaluated using a mechanical stirrer to improve the interaction between the wastes and microorganisms. The following are also evaluated: nutrient availability; incorporation of micro-organisms into the soil; introduction of chemical fertilizers; and, injections of sludge from effluent treatment plants.

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