Z1605K井构造位置为沧东凹陷孔西斜坡高部位孔二段,是一口大斜度井。2024年9月7日开钻,10月7日完钻,10月12日完井,完钻井深4104米,人工井底4085.1米。使用30级无限级压裂滑套,1个趾端滑套。
无限级压裂滑套规格参数
名称 | 长度(m) | 外径(mm) | 内径(mm) | 耐温(℃) | 开启压力 | 压裂孔 |
压裂滑套 | 1.2 | 165.1 | 109.5 | 163 | 最大开启压差22MPa | 12个6.45 cm2的压裂孔 |
趾端滑套规格参数
名称 | 长度(m) | 外径(mm) | 耐温(℃) | 开启压力 | 压裂孔 |
趾端滑套 | 0.42 | 177.8 | 130 | 95-100MPa | 15个2.84cm2的压裂孔 |
压裂情况
2024年11月14日,14:53-14:55,进行开趾端滑套开启作业,之前没有进行连油清洗井筒,在井口压力62.81MPa时,趾端滑套顺利打开;随后进行试挤,挤入779m³液体。从11月15日开始进行无限级压裂滑套施工,螺卡投放采用人工投放,到11月21日施工结束,所有滑套都100%打开。最高日施工6级,最大施工压力68.25MPa,最大加砂量87.58m3,最大液量1544.19m3,所有施工排量控制在10m3/min左右。
段号 | 日期 | 螺卡投放时间 | 螺卡就位时间 | 理论就位体积(m3) | 实际就位体积(m3) | 就位排量(m3/min) | 穿行信号 | 目标滑套状态 | 入座压力(MPa) | 打开压力(MPa) | 施工排量m3/min | 施工压力高值(MPa) | 加砂量(m3) | 压裂开始时间 | 压裂结束时间 | 实际用液量(m3) |
1 | 2024/11/14 | 趾端阀 | 44.81 | 62.81 | 10.06 | 62.81 | 44.32 | 14:55 | 17:46 | 1544.19 | ||||||
2 | 2024/11/15 | 8:25 | 8:58 | 44.68 | 47.80 | 1 | 29 | 正常 | 26.09 | 49.18 | 10 | 64.45 | 70.60 | 9:23 | 10:37 | 805.87 |
3 | 2024/11/15 | 10:44 | 11:09 | 44.29 | 47.79 | 1 | 28 | 正常 | 29.85 | 52.93 | 10 | 64.45 | 70.80 | 11:12 | 12:31 | 803.50 |
4 | 2024/11/15 | 12:38 | 13:05 | 44.15 | 50.58 | 1 | 27 | 正常 | 28.99 | 51.95 | 10 | 66.45 | 40.09 | 13:05 | 14:29 | 688.09 |
5 | 2024/11/15 | 14:35 | 15:00 | 44.02 | 47.50 | 1 | 26 | 正常 | 30.57 | 66.18 | 10.08 | 66.05 | 70.80 | 15:00 | 16:28 | 816.00 |
6 | 2024/11/16 | 8:10 | 8:32 | 43.63 | 47.11 | 1 | 25 | 正常 | 29.63 | 56.87 | 10.04 | 64.55 | 87.58 | 8:32 | 10:33 | 950.84 |
7 | 2024/11/16 | 10:45 | 11:08 | 43.37 | 47.77 | 1 | 24 | 正常 | 29.72 | 52.00 | 10.07 | 63.95 | 71.15 | 11:08 | 12:41 | 862.84 |
8 | 2024/11/16 | 13:26 | 13:46 | 43.10 | 46.80 | 1.2 | 23 | 正常 | 29.32 | 51.92 | 10.05 | 65.45 | 70.78 | 13:46 | 15:09 | 832.18 |
9 | 2024/11/16 | 15:48 | 16:08 | 42.84 | 46.31 | 1.2 | 22 | 正常 | 30.08 | 54.91 | 10.17 | 65.45 | 70.79 | 16:08 | 17:29 | 811.58 |
10 | 2024/11/17 | 7:59 | 8:18 | 42.58 | 45.90 | 1.2 | 21 | 正常 | 28.52 | 50.71 | 9.99 | 64.45 | 70.79 | 8:23 | 9:48 | 842.21 |
11 | 2024/11/17 | 10:12 | 10:31 | 42.32 | 48.09 | 1.2 | 20 | 正常 | 30.18 | 52.76 | 9.98 | 63.65 | 55.04 | 10:32 | 11:38 | 666.46 |
12 | 2024/11/17 | 12:00 | 12:18 | 42.18 | 46.05 | 1.2 | 19 | 正常 | 30.17 | 53.49 | 10.04 | 65.55 | 55.08 | 12:19 | 13:22 | 646.19 |
13 | 2024/11/17 | 13:46 | 14:05 | 41.92 | 45.42 | 1.2 | 18 | 正常 | 30.87 | 53.80 | 10.05 | 65.25 | 55.05 | 14:06 | 15:09 | 658.29 |
14 | 2024/11/17 | 16:20 | 16:39 | 41.78 | 45.16 | 1.2 | 17 | 正常 | 29.69 | 54.04 | 9.99 | 65.95 | 39.95 | 16:41 | 17:34 | 533.99 |
15 | 2024/11/18 | 8:36 | 8:55 | 41.64 | 45.30 | 1.2 | 16 | 正常 | 31.90 | 56.84 | 9.98 | 65.45 | 55.04 | 8:56 | 10:02 | 673.76 |
16 | 2024/11/18 | 10:31 | 10:48 | 41.38 | 45.09 | 1.2 | 15 | 正常 | 30.98 | 54.93 | 10.01 | 66.45 | 55.03 | 10:31 | 11:54 | 658.10 |
17 | 2024/11/18 | 13:59 | 14:15 | 41.24 | 43.74 | 1.2 | 14 | 正常 | 32.10 | 54.71 | 9.98 | 66.45 | 39.99 | 14:16 | 15:07 | 526.33 |
18 | 2024/11/18 | 15:14 | 15:31 | 41.10 | 44.59 | 1.2 | 13 | 正常 | 30.92 | 58.98 | 10 | 66.45 | 55.05 | 15:32 | 16:36 | 658.72 |
19 | 2024/11/18 | 16:42 | 16:59 | 40.84 | 44.83 | 1.2 | 12 | 正常 | 32.20 | 56.00 | 10.02 | 66.45 | 70.76 | 17:00 | 18:21 | 822.24 |
20 | 2024/11/19 | 7:49 | 8:08 | 40.58 | 44.20 | 1.2 | 11 | 正常 | 32.04 | 68.75 | 10.15 | 66.45 | 70.75 | 8:19 | 10:03 | 942.89 |
21 | 2024/11/19 | 10:08 | 10:21 | 40.31 | 44.09 | 1.2 | 10 | 正常 | 31.50 | 57.12 | 10.03 | 66.45 | 55.14 | 10:26 | 11:43 | 736.18 |
22 | 2024/11/19 | 11:48 | 12:05 | 40.18 | 46.62 | 1.2 | 9 | 正常 | 31.81 | 55.00 | 10.01 | 66.45 | 40.07 | 12:07 | 13:02 | 550.34 |
23 | 2024/11/19 | 13:23 | 13:39 | 40.04 | 44.10 | 1.2 | 8 | 正常 | 31.65 | 53.60 | 10.03 | 66.45 | 55.06 | 14:01 | 15:13 | 674.41 |
24 | 2024/11/19 | 15:20 | 15:42 | 39.78 | 51.31 | 1.2 | 7 | 正常 | 31.93 | 54.80 | 10.03 | 66.45 | 55.10 | 15:45 | 16:54 | 674.47 |
25 | 2024/11/19 | 16:59 | 17:14 | 39.64 | 44.34 | 1.2 | 6 | 正常 | 31.35 | 59.64 | 10.03 | 66.45 | 40.02 | 17:15 | 18:10 | 557.07 |
26 | 2024/11/20 | 7:59 | 8:14 | 39.51 | 43.10 | 1.2 | 5 | 正常 | 32.60 | 55.54 | 10.03 | 66.45 | 55.15 | 8:15 | 9:20 | 660.22 |
27 | 2024/11/20 | 9:26 | 9:43 | 39.24 | 44.23 | 1.2 | 4 | 正常 | 32.17 | 55.60 | 10.08 | 66.45 | 70.81 | 9:45 | 14:16 | 791.16 |
28 | 2024/11/20 | 14:38 | 14:52 | 38.98 | 42.24 | 1.2 | 3 | 正常 | 32.42 | 56.50 | 10.03 | 66.45 | 70.83 | 14:53 | 16:11 | 791.53 |
29 | 2024/11/20 | 16:16 | 16:31 | 38.72 | 42.69 | 1.2 | 2 | 正常 | 31.76 | 56.48 | 10.15 | 67.45 | 55.03 | 16:31 | 18:01 | 900.60 |
30 | 2024/11/21 | 7:44 | 7:59 | 38.58 | 42.40 | 1.2 | 1 | 正常 | 33.99 | 56.31 | 10.03 | 67.75 | 40.00 | 8:00 | 8:55 | 554.95 |
31 | 2024/11/21 | 8:59 | 9:17 | 38.44 | 45.94 | 1.2 | 0 | 正常 | 33.31 | 55.48 | 10.05 | 68.25 | 39.96 | 9:18 | 10:24 | 663.24 |