Alkaline-Surfactant-Polymer Combination Flooding for Improving Recovery of the Oil With High Acid Value

Abstract

This psper wss prepared for presentstiin at the international Meeting on Petroleum Engineering held inS@ing, PR China, 14-17 November 19S5. Thii paper was @acted for presentation by sn SPE Program Commitws following review of infonnakm contsinsd in an sbatracf submitted by the suthor(a). Contents of the psper, ss presented, trsve not been rssiewed by the Society of Petrotaum Engmews snd me subjectd to mrrectii by ths suthor(s). The materiel, aa prssented, doaa not necessarily raftacl any poaitii of the Society of Petrobum Enginaers, Its offiiers, or members, Papers presented at SPE meetings are subject to publiitiin review by E@risl Commiffaas of the !30skly of Petroleum Engineers. Pmt'IksaiOII to sopy is restricted to an abatrsct of not more than 200 wwds. lMuatrstima msy mt be copied. The abstract shoukt contain mrrspisuoua Sck_mant d whers snd by whom fhs pspef is preeentsd. Write Librsrisn, SPE, P.O. Sox S22S26, Rkhsrdscm, TX 750S2-2S36, U.S.A. (Facairnk 21 4-952-S425).

Evaluation of optimum surfactant concentration needed for Niger delta oil recovery in Nigeria

“…Two pilot tests of ASP and SAP flooding have been successful in China. The one (SAP) is in Daqing Oil Field for waxy crude oil of low acid (Gao et al, 1996), and the other (ASP) is in Shengli Oil Field for the high acid oil (Song et al, 1995). Some appreciable research works carried out on chemical EOR flooding by different researchers could also be found.…”

Applied Technologies and Prospects of Conformance Control Treatments in China

“…Water production is a well-recognized problem in depleting reservoirs and water control has become one of the most important targets for oilfield operators [1][2][3]. Many methods can be used to control water, such as polymer flooding, ASP, gel treatments, and so on [4][5][6]. Sometimes hydraulic fracturing and acid stimulation also have the role to reduce water cut [7][8][9][10].…”

Integrated Separate Layer Injection Technology on ASP Full Term Flooding for II and III Kind Formation in Daqing Oilfield

“…The separate injection string is compatible with water flooding technology and it can be satisfied the requirement of the blank water flooding、ASP flooding and sequent water flooding, the investment and operation cost are dropped. The field application of 56 injection wells shows that the running and fishing, the verifying sealing and the flowrate allocation technology can be operated by production company by themselves, the average testing time of single well is about 2-3 days.The Daqing oilfield practice shows that [1,2] : ASP flooding compare with water flooding can be more increased the oil recovery over 20 percent. At present, Daqing Oilfield totally have 728 ternary production wells and 625 injection wells, the oil production maintain keeps more than one million tons for three consecutive years, the cumulative oil production of 6.135 million tons.…”

“…The Daqing oilfield practice shows that [1,2] : ASP flooding compare with water flooding can be more increased the oil recovery over 20 percent. At present, Daqing Oilfield totally have 728 ternary production wells and 625 injection wells, the oil production maintain keeps more than one million tons for three consecutive years, the cumulative oil production of 6.135 million tons.…”