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008 140127s2012 th r 000 eng d
035 _a.b12125866
099 9 _aAIT Thesis no.OTM-12-07
100 0 _aChalatchawan Surapongshandej
245 1 0 _aComparision of in-situ and conventional gas lift for commingled reservoirs in Pattani Basin
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2012
300 _a1 online resource (80 leaves) :
_bill.
490 1 _aThesis ;
_vno. OTM-12-07
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Offshore Technology and Management, School of Engineering and Technology
502 _aThesis (M. Eng.) - Asian Institute of Technology, 2012
520 _aThere are many methods to help lift oil to the surface. For instance, gas lift method. This approach is widely used to gain more oil recovery than let the oil flow by itself. In this study, gas lift methods, both conventional gas lift and in-situ gas lift, are studied in the deep detail to determine an appropriate way to improve oil recovery. By simulation oil reservoirs in commingled production through using conventional gas lift as a base case and in-situ gas lift cases in several conditions. There are several conditions for in-situ gas lift cases because improvement of oil recovery by using in-situ gas lift method needs to find the suitable gas reservoir for good results of oil recovery. The parameters that effect amount of gas and gas flow rate need to be concerned such as permeability (k), perforation interval (hp), depth and thickness of gas reservoirs (h). The results from ECLIPSE simulation show that both conventional gas lift and in-situ gas lift can help improve oil recovery quite well. For the variable outcome (permeability, perforation interval, depth and thickness of gas reservoir), the factor that directly takes effect to amount of gas in gas reservoir is thickness and the other studied factors directly affect the gas flow rate. Although gas help lift up the oil, amount of gas and gas rate must not have or flow too high because the excess gas will flow very quicklyup to the surface. Hence, there is not enough time to allow gas blend with oil then oil cannot flow smoothness. By the way, the oil recovery factor comparisons of conventional gas lift case and in-situ gas lift cases demonstrate that the conventional gas lift can improve oil recovery factor better than in-situ gas lift cases. Nevertheless, the conventional gas lift case spends more cost than in-situ gas lift cases. In addition, some it-situ gas lift cases obtain oil recovery production closely the conventional gas lift.
650 0 _aGas lift pumps
_zThailand
_zPattani Basin
650 0 _aGas reservoirs
_zThailand
_zPattani Basin
700 1 _aChiu, Gregory L.F.,
_eChairperson
700 0 _aSuwat Athichanagorn,
_eCo-Chairperson
700 0 _aJirawat Chewaroungroaj,
_eCo-Chairperson
710 2 _aRTG Fellowship,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. OTM-12-07
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B03626
907 _a.b12125866
_bmnait
_cs
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998 _b0
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_tAbstract--AIT Thesis no.OTM-12-07
_vn
945 _lmnait
945 _lmnait
945 _lmnarc
945 _lmnarc
942 _c20
942 _c40
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