【導讀】JamesWaithaka–SeniorEngineer,DrillingOperations高級工程師，鉆井操作

　　

【正文】 ，壓力 1000 帕。注滿包括排屑管線在內的所有循環(huán)管線。 PHASE III – PRODUCTION HOLE PROGRAM 階段 3生產 套管 井眼設計 Drilling 12 188?！?hole 鉆 12 188。 寸井眼 16 Run in with a slick BHA consisting of 12 188。’’ bit and 8’’ drill collars to drill out cement Drill out cement with water with low WOB and rotary speed in order to have low rotary torque. Pressure test the shoe track using pipe ram to 200psi and 1,000psi for 10min each time. Drill ahead to 30m below the casing shoe and then trip out of the hole. 下入底部鉆具組合（包含 12 188。 寸的鉆頭和 8 寸鉆鋌）鉆開水泥。為保持低 旋轉扭矩，用水在低鉆壓和旋轉速度 下鉆開水泥。使用閘板每次 長達 10 分鐘測壓鞋 軌道，壓力 200 帕和 1000 帕。先鉆至套管鞋下 30 米處，然后起出。 The production casing should be set at about 750m RKB. Drill to casing tally depth plus overhole. Confirm the casing shoe will be in petent formation with the Geologist. Do wiper trips from the previous casing shoe using the same BHA and spot a high viscosity gel pill before tripping out. 生產套管應被放置在 約 750 米巖石層?？摄@至過套管深度 下 米 。向地質學家確 認套管鞋 應 處于 致密 地層。用先前使用的井底鉆具組合 從套管鞋處 劃眼起鉆，在 起鉆前 加入高粘度的藥品。 Production Casing and Cementing Program 生產套管和固井設計 1. Run 9 5/8’’, 47 lb/ft, K55, BTC as follows: 按以下要求下 9 5/8’’, 47 lb/ft, K55 梯形接箍套管： a) Guides use THREADLOCK 引鞋 加螺紋密封脂 b) Shoe joint – use THREADLOCK 鞋管 加螺紋密封脂 c) Float collar – use THREADLOCK 浮箍 加螺紋密封脂 d) Rest of casing –CASING DOPE (NO THREAD LOCK) 套管剩余 涂抹絲扣油（不加螺紋密封脂） 2. Place centralizers as follows: 按以下要求放置扶正器： a) 1 middle of shoe joint – stop collar 引鞋和浮箍之間的鞋管 1 個 用 止動環(huán) 限制 b) 1 @ 2m above float collar stop collar 浮箍上方 2 米 1 個 用 止動環(huán) 限制 c) 1 every 4 casing joint to surface –casing collars. 每 4 個套管有 1 個 ， 到地面 —用 套管接箍 限制 3 Run casing no faster than 45 sec/joint, slower near the bottom. 下套管每根控制在 45 秒以內，緩慢下放接近井底。 4 Run the last three joints slowly. Make up the landing joint with a circulating swage and chicksan hose. If fill is encountered, circulate the landing joint to bottom through the swage. If the casing is full, start pumps slowly while raising string to avoid surging. 最后三根緩慢下放。用循環(huán)接頭和水龍帶連接在聯(lián)頂節(jié)上。如果遇阻，用循環(huán)接 頭進行循環(huán)。如果套管是滿的，緩慢啟動泵，同時提升套管避免憋壓。 17 5 Circulate casing as advised by Drilling Engineer on duty. If formation problems were encountered during drilling or a lot of fill when landing casing, mix up 10,000 liters of light gel, about 40 seconds marsh funnel viscosity. Discuss how best to run the gel with the Engineer on duty. 按值班鉆井工程師建議循環(huán)套管。如果在鉆井過程中遇到地層問題或者下放套管 時 遇阻，則配 混 10， 000 升的稠化液（約 40 秒馬氏漏斗粘度 ）準備灌入 ，和值班工程師討論最好 的灌入方法。 6 Land the casing at the correct height with landing joint and ensure that it is centralized with the rotary table. 用聯(lián)頂節(jié)在準確的高度調整套管，確保居中。 NOTE 4: 注 4 Take note of where the 13 3/8’’ casing was landed to ensure that the 9 5/8’’ casing is landed correctly. 標注 13 3/8 套管下放 位置， 以確保 9 5/8 寸套管的確切位置。 Cementing 固井 1. Call a safety meeting between the drilling crews and the cementing equipment operators. Cement as per the cement program provided by KenGen Drilling Engineer. 在鉆井成員和固井設備操作員之間召開安全會議。 要按照 KenGen 鉆井工 程師提供的固井計劃 固井 。 2. Displace the cement after releasing the top plug with water. Measure the displacement volume using the tanks on the cementing unit. The 9 5/8’’ OD, 47lb/ft, casing capacity is 釋放頂塞后用水頂代替水泥。用固井設備上的罐測量替漿體積。外徑 9 5/8 寸， 47 lb/ft，套管容量為 。 3. Slow down the pumping rate over the last 2020 liters of displacement. Bump the plug at no more than 500 psi above the final displacement pressure. Maximum allowable pressure before bumping the plug is 3880 x = 2910 psi. 在剩最后 2020 升頂替液時降低泵排量。碰壓壓力不超過 500psi，最大可允許碰壓 為 2910psi. 4. Bleed off the pressure. Check if the plug holds. If it does not, leave the casing valve closed to provide a hydraulic lock. Bleed off the pressure every two hours until the cement is set or fluid stops flowing out of the casing. 泄壓。檢查回壓凡爾是否正常。如果不正常，在井口進行套管內憋壓。每兩小時 卸掉上漲那部分壓力直到水泥漿凝固或者不再倒返為止。 5. If good cement returns are not obtained, consult the Engineer on whether to flush the casing annulus. Backfill the casing annulus to surface with cement slurry. 如果泥漿返高不夠，咨詢工程師是否清洗套管環(huán)空，井口回填水泥漿。 6. Remember to leave the chicksan lines and annular BOP as advised in Note 3. 注意要按照注 3 的建議注水泥水龍帶遠離環(huán)形防噴器。 18 NOTE 4: 注 4 1. Casing: (The Cementing method, will either be innerstring cementing or two stage cementing, shall be advised by KenGen Drilling Engineer) 套管：（固井方法，需根據(jù) KENGEN 鉆井工程師建議，要么是內管法固井或者雙 級固井） 2. The erosion shield should fit when the master valve is finally installed. There will be NO NEED to use water to flush the top of the cement away after cement returns are obtained. 在主閥門安裝好之后安裝防腐罩。水泥返高達到要求后，不需要用水沖洗掉頂部 水泥漿。 3. WOC for 8 hours or until the cement samples have set. Open the annular BOP and back off the landing joint. 候凝 8 小時或者直到水泥漿樣品凝固。打開環(huán)形防噴器，卸掉聯(lián)頂節(jié)。 4. After WOC for a minimum of 36 hours, pressure test the blind rams, pipe rams and hydril to 200 psi and 1000 psi for 10 minutes each. 最少候凝 36 小時后，全封閉防噴器閘板測壓，壓力 2001000psi，穩(wěn)壓 10 分鐘。 PHASE IV – MAIN HOLE PROGRAM 階段 4主井眼設計 Drilling 8189?！?Hole 鉆 8189。 寸井眼 Run in with a slick 6 188?！疊HA with 8 189?！痓it to drill out cement with water. Drill out cement with low RPM and WOB maintaining low rotary torque. Drill ahead to 30m below the casing shoe then pull out of the hole. 下入 6 188。 寸底部鉆具組合（ 8 189。 寸鉆頭）用水鉆出水泥。采用低轉速，穩(wěn)定 鉆壓和低鉆盤扭矩鉆出水泥。先鉆至套管鞋 30 米以下，然后起出井孔。 Run in with a pendulum 6 188?！?BHA consisting of the 8 189?！?bit with stabilizer 20m above the bit and drill ahead with water. 下入 6 188。 寸擺動式底部鉆具組合（包含 8 189。 寸鉆頭，鉆頭上方 20 米扶正器），先用 水鉆。 When the first signs of lost circulation appear, partial or