Research On Well Pattern Optimization Deployment In The Western Of North One-two Rows Of Sazhong Development Zone

This paper aims Sazhong in the western zone of North one-two rows of fine reservoirdescription and study well network deployment，Sa fine geological results of the study basedon the zone, the use of fine reservoir description, fine three-dimensional seismic technology,high-precision dynamic monitoring technology, reservoir characterization technology finestructure, re-build the underground system understanding, find out the distribution of theremaining oil.One-two rows of the western region of North WELL situation, development process,each field test study of the situation in the block and the main problem currently existing inthe development were analyzed block of reservoir characteristics, structure, and faults,reservoir temperature and pressure, fluid properties, blocks geological reserves, reservoirtypes were introduced, and applied geological research describes the fine or two rows ofwestern North Portugal and sedimentary features two groups Gaotaizi reservoir, reservoirheterogeneity and reservoir development status.Conditions of use of existing wells networks, the type and distribution of remaining oildistribution characteristics summarized on the current status and well network utilization anddistribution of remaining oil distribution types summarized, Gaotaizi types and distribution ofremaining oil reservoir characteristics: First Well Network type uncontrollably remaining oil;Second, the remaining oil in a narrow river; Third imperfect injection type of residual oil;fourth fault block type residual oil. The type and distribution of the remaining oil reservoirPortugal two groups: one injection imperfect type remaining oil; Second WELLuncontrollably type remaining oil; Third fault block type residual oil.Based on careful geological research and numerical simulation to determine the Gaotaizioil reservoir and Portugal two groups encryption resize the object, adjust the mode intervalportfolio and development order. Preferably the most reasonable and economical wellnetwork deployment scenarios, two development wells were deployed networks are encryptedand Portugal Gaotaizi oil reservoir EOR two groups encryption, two new wells are all wellnetwork. And the adaptability of the well network to determine the well spacing designstandards: North Western Portugal or two rows of two groups of second-class oil and GaotaiziInfill net injection wells are determined to be150m from the more reasonable.Geological modeling and numerical simulation of the development of indicators on apreliminary prediction block and studied two groups of second-class Portuguese polymerflooding match when reasonable parameters, including the type of polymer, polymermolecular weight, concentration and injection injection rate, improved oil recovery predictedblocks and increase recoverable reserves, and economic blocks were evaluated, of significant economic benefit can be promoted in the zone Sa similar blocks.